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1. (WO2018197833) RF POWER HARVESTER

Pub. No.:    WO/2018/197833    International Application No.:    PCT/GB2018/050875
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Mar 30 01:59:59 CEST 2018
IPC: H02J 50/27
H01Q 1/38
H01Q 9/40
Applicants: DRAYSON TECHNOLOGIES (EUROPE) LIMITED
Inventors: DE SOUSA, Aline Coelho
FRANCISCATTO, Bruno Roberto
FREITAS, Vitor Andrade
Title: RF POWER HARVESTER
Abstract:
An RF power harvester comprising a dielectric substrate, having a first major surface and a second major surface, opposite to the first major surface; a connection for a rectifier on the first major surface; an antenna carried on the substrate for harvesting electrical power from a radio frequency electromagnetic field. The antenna comprising a first track of conductive material, carried on the first major surface and comprising a first end adjacent an edge of the substrate, a second end for connection to the rectifier, a first series of line sections between the first end and the second end and a first plurality of meanders, wherein a first line section of the series provides the first end and each subsequent line section is connected to its preceding line section by a meander and is of greater length than its preceding line section.